Butternut squash is a type of winter squash, which means it's harvested in the fall and matures on the vine. As it grows, the squash absorbs sugars and starches from the plant, gradually becoming sweeter and more complex in flavor. It's kind of like a fine wine, getting better with age!
So, when a butternut squash is young and immature, it's often green or white and has a soft, prickly skin. But as it ripens, the skin transforms into a gorgeous tan or golden brown color, with a hard, smooth texture that's just inviting you to take a bite. But what's behind this transformation?